(19)
(11) EP 1 541 355 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.07.2005 Bulletin 2005/30

(43) Date of publication A2:
15.06.2005 Bulletin 2005/24

(21) Application number: 04028962.1

(22) Date of filing: 07.12.2004
(51) International Patent Classification (IPC)7: B41J 2/16
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 08.12.2003 JP 2003408839

(71) Applicant: Brother Kogyo Kabushiki Kaisha
Nagoya-shi, Aichi 467-8561 (JP)

(72) Inventor:
  • Terakura, Tatsuo Techology Planning & IP Dept.
    Mizuho-ku Nagoya-shi Aichi 467-8562 (JP)

(74) Representative: Hofer, Dorothea, Dipl.-Phys. et al
Prüfer & Partner GbR Patentanwälte Harthauser Strasse 25 d
81545 München
81545 München (DE)

   


(54) Method for producing inkjet head and inkjet head


(57) A method of producing an inkjet head includes producing a flow path unit that includes plural ink flow paths that reach ink jet nozzles throughpressure chambers; producing an actuator unit that has a thermal expansion coefficient different from that of the flow path unit, includes a piezoelectric ceramic sheet; laminating the flow path unit and the actuator unit through a heat-curable adhesive agent; heating the flow path unit and the actuator unit to a predetermined temperature; applying pressure on the flow path unit and the actuator unit against each other through the heat-curable adhesive agent, after the flow path unit and the actuator unit are thermally expanded to maximum sizes at the predetermined temperature and before the heat-curable adhesive agent is cured; and releasing the pressure applied on the flow path unit and the actuator unit after the heat-curable adhesive agent is cured.






Search report